There are two types of window replacements: full-frame and pocket. As the name suggests, full-frame replacements involve replacing the entire window, including the frame. Pocket replacements, on the other hand, entail installing a new window inside the current frame.
In most cases, you should opt for a pocket replacement. Pocket replacements are more affordable than full-frame replacements because they require less labor and fewer materials. One downside to pocket replacements is that the field of view through the window will narrow since you’ll effectively have two window frames.
In some cases — and especially if your frames are damaged — a pocket replacement won’t work, and you’ll need to invest in a full-frame replacement instead. Below, we explain the two types more thoroughly and explore the benefits of replacing your windows.
What is a full-frame vs. pocket window installation?
Full-frame window replacements involve tearing out the entire window frame and replacing it with a new one. They require more work and materials and are pricier than pocket replacements.
A pocket replacement involves removing the current window’s glass and installing a new window — including a thin frame — inside the existing window frame. The primary advantage of a pocket replacement is that it’s cheap and easy to do.
Neither type of replacement is suitable for a DIY home improvement project (unless you’re a professional window installer). However, understanding which replacement type you need will make it easier to hire the right installer.
Full-frame window replacement
A full-frame replacement is more expensive, but sometimes, it’s your only option. For example, you’ll need a full-frame window replacement if you have rotting or decaying wood frames. If you slot a new window into a decaying frame, you won’t solve the problem.
In some cases, local laws require full-frame replacements. Jeff Ludy, owner of Houston Window Experts, explained, “Sometimes, a full tear-out may be required…based on ordinances for the city you live in or the state you live in.” The reasoning for such requirements varies by location, but usually, it has to do with raising energy-efficiency standards.
Full-frame window installations almost always require other work alongside the window replacement itself. You may have to hire a carpenter to replace the window sill and trim, and you might need them to replace or repaint parts of your home’s exterior.
Replacing the trim and window sill means you must also paint them. Hiring a painter adds to the overall cost of your home window project, so you could paint them yourself if you have the time and skillset.
We try to avoid full-frame replacements unless there’s a really good reason to do it
Jeff Ludy
The bottom line is that you should go with a pocket replacement unless you have window frame damage or your city or state requires a full-frame replacement. Ludy succinctly said: “We try to avoid full-frame replacements unless there’s a really good reason to do it.”
Pocket window replacement
Pocket installations are much easier than full-frame replacements: They’re cheaper, don’t require new window sills or trim, and won’t damage the outside of your home. According to Ludy, with pocket installation, “the pain points are almost zero.” He continued, “If we’re talking about medication, we would say this has no known side effects.”
The downside to a pocket replacement is that you lose some surface area on the pane of glass. Since a pocket replacement installs a new window — including a thin frame — inside the current window frame, you lose a few inches of glass. A smaller window will also mean less airflow through the window when it’s open.
The existing window’s size may affect whether that’s a problem. Most people don’t mind losing a few inches off a six-foot window, but removing an inch or two on a two-foot bathroom window can feel like a lot. If having an unobstructed view or a lot of natural light is important to you, make sure a pocket installation won’t reduce your window’s glass area too much.
When should you replace your windows?
You typically replace your windows for one of three reasons: to change your home’s look, to fix a structural problem or to increase your home’s energy efficiency. The graphic below highlights the top six reasons why respondents from our October 2023 window survey replaced their windows.
If you’re unsure whether your windows need replacing, consult a professional installer in your area. A good rule of thumb is that most homes need new windows every 15 years. You should also replace them if you have issues with air or water leaks or mold growth around the window.
Below, we detail the top reasons why you might want to replace your windows.
You want to upgrade your home’s aesthetic
Upgrading your old windows is one of the cheapest ways to give your home a facelift and improve its curb appeal. “At least 75% of people who buy windows from us, it’s really for design reasons,” said Ludy.
At least 75% of people who buy windows from us, it’s really for design reasons.
Jeff Ludy
If you inherited your windows from your home’s previous owner, they might start to look out of place once you start upgrading other parts of your home. For example, traditional wood window frames might clash if you’ve replaced your siding or repainted your house to create a sleeker, more modern look.
Additionally, bay and bow windows are very popular among homeowners looking to give their homes a more open feel. You might opt for a window replacement or bay window installation to create your desired interior. Keep in mind, though, that this project requires significantly more planning and work to install than other window types, especially if you’re doing a full-frame rather than a pocket replacement.
Your windows have structural issues
Sometimes, your windows will tell you when to replace them. Necessary replacement is common with wooden windows since wood may rot over time. In extreme cases, you may see sagging or gaps in your window frames. You may also notice air or water leaks around the windows or mold growth due to a leak.
If you suspect your windows have structural issues, hire a window expert to inspect them. Unfortunately, if your window frames aren’t in good shape, you’ll have to bite the bullet and have a full-frame replacement.
Sometimes, you can get away with minor repairs and a pocket replacement. A local window installation professional will help you determine whether or not you need a full-frame replacement or if a pocket replacement is good enough.
You want to improve your energy efficiency
An increasing energy bill often indicates that your home needs new windows. The U.S. Department of Energy found that about 30% of the energy used to heat and cool buildings in the United States is lost through windows.
New, more insulating windows can reduce the amount of energy you use to run your HVAC system, substantially lowering your monthly heating and cooling bills. Your area’s electricity, gas or oil rates and the systems you use to control your home’s indoor climate will determine how much you save.
If energy efficiency is your goal, look for windows that qualify for the Energy Star program. Energy Star-certified windows have lower heat transfer statistics, which means they’re better at insulating your home than windows that don’t meet the requirements for certification. Highly rated energy-efficient windows will cost more upfront but save you money on energy bills in the long run.
Replacement windows vary in efficiency characteristics. Vinyl windows are extremely popular and offer good insulation, but they’re less energy efficient than fiberglass. However, fiberglass windows cost more than vinyl windows, so you’ll have to decide whether they’re worth the extra expense.
Most energy-saving window frames will accommodate a range of window styles. Awning windows, casement windows, picture windows, single-hung windows and double-hung windows are all available with either vinyl or fiberglass frames, allowing you to choose the best windows for your home’s design and efficiency needs. You can also order custom windows, which are much more expensive but give you the most flexibility.
What’s next?
If you want to replace your windows, start by finding a professional window installer near you. They’ll be able to help you find the right windows to meet your needs — whether aesthetic, structural, energy-related or all three — and inspect your window frames to see if you can go with a cheaper pocket replacement.
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